How to Get OnDestroyed Method When User Swipe up App

[rohitsangwan01]

Hey , can we have a method which will be called just when app is about to Terminate

[Dev-hwang]

You can't get OnDestroyed function if you need to keep foreground service even when app is killed.

[Dev-hwang]

You can use this method if you don't mind if the foreground service is killed.

1. In the service tag of the AndroidManifest.xml file, set the android:stopWithTask option as shown below:

<service
    android:name="com.pravera.flutter_foreground_task.service.ForegroundService"
    android:stopWithTask="true" />

2. Set the isSticky option to false in AndroidNotificationOptions:

Future<void> _initForegroundTask() async {
    await FlutterForegroundTask.init(
      androidNotificationOptions: AndroidNotificationOptions(
        channelId: 'notification_channel_id',
        channelName: 'Foreground Notification',
        channelDescription: 'This notification appears when the foreground service is running.',
        channelImportance: NotificationChannelImportance.LOW,
        priority: NotificationPriority.LOW,
        isSticky: false,
      ),
      iosNotificationOptions: const IOSNotificationOptions(),
      foregroundTaskOptions: const ForegroundTaskOptions(
        interval: 5000,
        autoRunOnBoot: true,
        allowWifiLock: true,
      ),
      printDevLog: true,
    );
  }

3. When the app is killed, TaskHandler's onDestroy function is called.

class FirstTaskHandler extends TaskHandler {
  @override
  Future<void> onStart(DateTime timestamp, SendPort? sendPort) async {

  }

  @override
  Future<void> onEvent(DateTime timestamp, SendPort? sendPort) async {

  }

  @override
  Future<void> onDestroy(DateTime timestamp) async {
    // here
  }
}

[rohitsangwan01]

@Dev-hwang , thanks for reply, i dont need foreground services when user swipe up the app , its just , as long as user using that app , and its still in taskbar, becuase when user swipes up the app with your package , app is not disconnecting with bluetooth(which is connected with a stream) , and becuase of that , when user opens the app , that bluetooth device is still connected , but app as usually opens the scan page( and that bluetooth device will not be discoverable , until i break connection manually from mobile) , so i want this service just to keep bluetooth task in background as long as app is in Taskbar of Mobile , and user can just swipe up and break all connections and stop app services completly , so can i achieve this with your package , will try this above solution , if Ondestroy worked , will close all connection Streams in that

[rohitsangwan01]

@Dev-hwang , above solution worked perfectly , Thanks